diff --git a/src/backend/access/heap/vacuumlazy.c b/src/backend/access/heap/vacuumlazy.c
index a3c4a1d..5e04c15 100644
--- a/src/backend/access/heap/vacuumlazy.c
+++ b/src/backend/access/heap/vacuumlazy.c
@@ -1988,6 +1988,9 @@ lazy_truncate_heap(Relation onerel, LVRelStats *vacrelstats)
 				 errdetail_internal("%s",
 									pg_rusage_show(&ru0))));
 		old_rel_pages = new_rel_pages;
+		/* Reset usage for truncating remain pages */
+		pg_rusage_init(&ru0);
+
 	} while (new_rel_pages > vacrelstats->nonempty_pages &&
 			 vacrelstats->lock_waiter_detected);
 }